Reaction of H Atoms with Solid C2H4 and C2H6 at 13 K
Abstract
The reaction of H with solid thin films of C2H4 and C2H6 deposited on the silicon substrate at 13 K was studied using the thermal desorption method and Fourier transform-infrared (FT-IR) spectroscopy. In the reaction of H with C2H4, the formation of C2H6 as a major product and C4H10 as a minor one was observed. The high yield of C2H6 formed from the low-temperature tunneling reaction suggests the occurrence of efficient conversion of C2H4 into C2H6 on the cold dust grains. In the reaction of H with C2H6, no reaction products were detected, suggesting that the recombination reaction H + C2H5 --> C2H6 prevails in the solid phase.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- March 1999
- DOI:
- 10.1086/306942
- Bibcode:
- 1999ApJ...514..524H
- Keywords:
-
- ISM: DUST;
- EXTINCTION;
- METHODS: LABORATORY;
- MOLECULAR PROCESSES;
- ISM: Dust;
- Extinction;
- Methods: Laboratory;
- Molecular Processes